Stencil hand stamp



Jan, 13, 1925.

W. P. MASON TENCLL HAND STAMP Filed April 5o, 1923 TTORNEY WITNESSES Patentes Jan. 13, 1925;

NITED STATES STENCIL HAND STAMP.

' Application led April 30, 1923.

To all whom t may concern:

Be it known that I, VILLIAM P. MASON, a citizen of the United States, residing at Norfolk, in the county of Norfolk and State of Virginia, have invented new and useful Improvements in Stencil Hand Stamps, of which the following is a specification.

This invention relates to a stencil hand stamp by means of which an impression is formed upon a surface through a stencil held in contact therewith.

The general object of the invention is to provide a unitary device, simple in its construction and operation, by means of which the stencil and stamping element may be held and guided so that the characteristic design or signature, or other mark, formed in the stencil, may be impressed on a surface in the same manner as an ordinary hand stamp is used.

Other objects of the invention include novel means for removably supporting the stencil as well as a stamping element of novel construction, and improved means for positioning the stamping element and for supplying ink thereto.

The nature of the inventionwill be best understood from the following detailed description taken in connection with the accompanying drawing, which illustrates the preferred form of the invention.

In the drawing Fig. 1 is a front elevation of the invention with parts shown in section.

Fig. 2 is a rear elevation thereof.

Fig. 3 is a vertical longitudinal section.

Fig. 4 is a sectional view on the line 4 4 of Fig. 2, with parts broken away.

Fig. 5 is a view similar to Fig. 3, but showing the stamping element and plunger depressed.

Fig. 6 is a perspective view of the stencil and guide frame for holding the same.

The device comprising my invent-ion includes a U-shaped frame 1 having depending arms 2 and 3, at the lower ends of which is removably supported a guide frame 4, the latter having at its ends upturned flanges 5 which may be attached to the arms 2 and 3 by screws 6 or the like.

The frame 4 is provided wit-h a central rectangular opening on each side of which aire formed longitudinal guides 7 in which the stencil frame 8 `may be inserted. The frame 8, as shown, carries a stencil 9 of paran paper or the like, on which the Serial No. 635,686.

signature or other design may be inscribed with a sharp pointed instrument. The specitic nature of the stencil, however, is not an essential part of the invention and any other stencil may be inserted in the same manner.

A guide collar 10 is secured centrally to the yoke 1 in any suitable manner. As shown, the collar 10 is formed with flanges 11 which are secured to the yoke by means of screws 12. A plunger', which Carries the stamping element hereinafter described. is mounted within the frame 1 with its stem 13 mounted to reciprocate within the collar 10. At the lower end of the stem 13, a reinforcing and supporting plate 14 is secured, to which a yoke 15` is attached by screws 16 or the like. The arms of the yoke are guided in suitable guideways 17 formed on the inner faces of the frame arms 2 and 8, and rotatably support the trunnions 18 of a stamping element 19. This stamping element is substantially cylindrr cal but provided with a plurality of symmetrically-arranged flat faces 20 each of which is formed of a rubber pad and which are adapted to carry sufficient ink to form the desired impression when brought into contact with the stencil 9.

When the plunger stem 13 is depressed, the stamping element is brought into cooperative relation to the stencil and the several faces 20 are successively presented thereto. The means by which the step by step rotation of the stamping element is effected, includes a ratchet wheel 21 secured to one of the trunnions 18 and provided with as many notches 22 as there are faces 20. A spring-actuating element 2.3 is supported by a reinforcing plate 24 secured to` the underside of the frame member 1. Each time the plunger rises, the lower end of the spring element 23 engages one of the notches 22, causing the partial rotation of the stamping element 19, while upon the downward movement of the plunger, the end of the spring element 28 rides freely over the surface of the wheel 21. A second spring-actuating' element 25 is suitably secured to the yoke 15, as indicated at 26 in Fig. 3, and cooperates successively with the plurality of flat faces 27 formed on one of the trunnions 18 to position the cylinder 19, so that one of the faces 20 will always be presented in parallel relation to the stencil 9.

They inking device `comprises aroller 28 of porousfrmaterial permeated with ink and resiliently supported by the spring arms 29 from the yoke115.l The spring` arms 29 are so tensioned that the roller is always in contact with the surface of thecylinder 19, and as the plunger is reciprocated and the cylinder is rotated step by step,`the ink is successively applied in turn to the several faces 2th of the cylinder, and these faces are subsequently brought in turn into operativerelationlto the stencil.

The stem13-fis provided at its upper end` `with a suitable knob or handle 30 having an internally-threaded socket 31 Whichissecured to the upper end of the stem andlield in adjustable relation theretobyimeans` of alock nut 32. The stem 13 isi hollowl and` a coil spring 33 is seated therein betweenl the bottom of the socket 31 :and an abutment 34, and is Vso tensioned as to restore the stamp element and plunger' toits normal or uppermost position after each.:depression-thereot The abutment 34 is secured:y to the,innernvall` of the i collar ,andi projectsinto the stem 13 throu-gh a slot 351 which extends longitudinally of the stem-13 for a sutiicient distance to permit: the reciprocation of theV plunger.

From the ,foregoing description, it -will he understood that after the stencil 9 =has been inserted Within the guideways` 7, successive impressions may be made `through the stencil by they stampi-ng element 19 merely by the depression of the plunger by means of the handle 30. Each time the plungerisrdepressed, one of the faces 2O will be presentedrin parallel relation to thev stencil,thevproper positioningof the cylinder being-fefi'ectedby the springpmember 25 pressing against one of the flat faces27. Upon-,release of lthe plungerH handle, the spring` 33. restores the plunger While lthe spring element 23=engages one of thenotches 22 to cause the cylinder' to be rotated' to bringV the next one ofthe fla-t faces QOiinto stamping position.-k

The stencil frame 8y maybe readily; removed and a newstencil insertedwhenever desired.. By removing the screws 6 andthe handle 30, theentiremecha'nism may be disassembled.V Y

lt will ,be seen, from the foregoing de- Y scription, that I have provided a simple unitary.. device,` all partsof which are successivelyi operated l merelyi. bythe, depression of the plunger by means ofV the handle 30. The invention is particularly adapted for thev useof stencils-y having clraraeteristicfeatures such for instance as a .persons signature` Which-may be easily inscribed thereon, and the stencil afterwards inserted-in the guideways 'r' for use in the manner above described.

While I have shown and described the specific details of one construction by means of which the invention Vmay be carried out, it is to be understood that this yis merely illustrative, I and that Various modifications may be made therein as long as-such-,modifications mark no material departure from the salient features of the invention, as set. forth in the following claims.

7h-at is claimed isc- 1. ln a stenci-lhand stamp,- the-combination with a substantially U-'shaped frame, a guide fra-me mountedat and connecting thelower ends of-Vv said U-shaped frame, guidingmeans provided on f said: guide frame, astencil` frame detachably mounted in said guiding means and carrying a stencil, zii-plunger, a spring for the plunger, and stamping meansmounted Within theV Ui shaped frame above-fthe'stencil and adapted to be*` actuated byWthe movement of the plungerto contact with the `stencil andv'pio dmc an inipression.-

2. In alstencil hand stamp, the combina tion ofv a frame, means for securing a stencil to the f aine in contactwvith the surface on `which the framerests, a plijmgerreeiprocableivithin? the frame, a stamping element, and means operable uponreciprocationof the plunger, first tol supply ink to the stamping element and then to cause the latter `to print'through fa stencil secured in the frame. V

ln a stencil hand stamp, thec'ombina' tion of a frame, a stencil seeuredfin` the frame adapted to contact with the-surface on which the framerrests, aplungeri mounted to reciprocate within-the frame, a-plurral-ity of i stampingY elements, andV means op-i erable uponreciprocatioir ofl the` plungerV to supply inkfsucc-essively'to the stamping elements and afterwards to vcause each stamping.. element :in turn to print through the stencil While-.ink isi'suppliedv to=a succeeding stampingelement. i Y. l

4; In a stencil Vhand stamp, the combina-V tion of a frame, meanswfor securing a stencil to the frame adapted tocontact VWith they surfaceV on Whichthe frame rests, a plunger mounteduto reciprocate lvvithin the frame and having a yoke Withinwvhicha cylinder is rotatably mounted, said cylinder having a pluralityy offlat faces, an sinking roller. yieldably held in contact With' the cylinder, .means for. rotating the cylinderto bring the flat faces successively into wiping contact-With therollerand to subsequently bring said faces into stamping relation to the stencil. Y

5. In a stencil hand stamp, thecombinae tion of a U-shaped frame, a stencil frame mounted at theV free ends of the VlJ-shaped frame and provided" with a stencil, a. spring held plunger operating in the U-shaped frame and provided with va rotatable cylinder having aseries ofi-iflattfaces, aninking frame, a spring roller adapted to engage the faces of the cylinder, and means for rotating the cylinder step by step upon actuation of the plunger to bring the faces into contact with the inking roller successively and to subsequently bring said faces into contact with the stencil.

6. In a stencil hand stamp, the combination of a U-shaped frame, a stencil frame removably secured to the free ends thereof, a yoke having a stem reciprocably mounted 'in the frame, a stamping element carried by the yoke in operative relation to the stencil frame, a handle removably secured to the projecting end of said stem, said yoke, stem and stamping element being freely removable from the frame when the stencil guide and handle are removed.

7. In a stencil hand stamp, the combination of a substantially U-shaped frame, a guide frame mounted at and connecting the free lower ends of said U-shaped frame, said guide frame having a central opening with guides at each side, a stencil frame mounted in said guides and carrying a stencil, a plunger operating in said U-shaped for the plunger, a rotatable stamping cylinder for the cylinder carried by the plunger, means for inking the cylinder, and means whereby said cylinder is carried into cont-act with the stencil to make an impression through the stencil.

8. In a hand stamp, the combination of a frame, a plunger mounted to reciprocate therein, a stamping cylinder rotatably carried by the plunger and having a plurality of flat faces, a ratchet wheel carried by the cylinder, a resilient member secured to the frame and engageable with the ratchet wheel to cause a partial rotation of the cylinder upon movement of the plunger in one direction, means to gage the partial rotation of the cylinder and to cause it to stop with one of the Hat faces always in the proper position for stamping, and an inking roller held in wiping contact with the cylinder.

9. In a stencil hand stamp, the combination of a U-shaped frame, a stencil frame mounted at and connecting the free ends of the` U-shaped frame, and provided with a stencil, a plunger operating in the U-shaped frame, a spring for the plunger, a rotatable stamping cylinder for the stencil carried by the plunger, an inking roller for inking the cylinder, and means for holding the roller in contact with the cylinder and for causing the rotation of the roller by the rotary movement of the cylinder.

In testimony, that I claim the foregoing as my own, I have hereto aliixed my signature.

WILLIAM PORTER MASON 

